CN104863592A - Large-structure sublevel drilling stage ore removal mining method with delayed filling - Google Patents
Large-structure sublevel drilling stage ore removal mining method with delayed filling Download PDFInfo
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- CN104863592A CN104863592A CN201510339681.9A CN201510339681A CN104863592A CN 104863592 A CN104863592 A CN 104863592A CN 201510339681 A CN201510339681 A CN 201510339681A CN 104863592 A CN104863592 A CN 104863592A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/22—Methods of underground mining; Layouts therefor for ores, e.g. mining placers
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
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Abstract
The invention relates to a large-structure sublevel drilling stage ore removal mining method with delayed filling. The mining method comprises stoping in stopes and bottom structure recovery which are carried out synchronously in a crossed manner, and comprises the following steps: step 1, stoping in odd-numbered stopes, wherein the stoping manner is sublevel drilling stage ore removal, and mined out space I is not filled immediately; step 2, stoping in 1/2 bottom structures I corresponding to the odd-numbered stopes, and filling ore rooms and the mined out space I, corresponding to the 1/2 bottom structures I, of the ore rooms after stoping is finished; step 3, stoping in even-numbered stopes, wherein mined out space II is not filled immediately; step 4, stoping in 1/2 bottom structures II corresponding to ore pillars, and filling the ore pillars and the mined out space II, corresponding to the 1/2 bottom structures II, of the ore pillars after stoping is finished. The mining method has the advantages that the mining-cutting work amount is reduced greatly; the production capacity of a single stope is high; the efficiency is high; workers' labor intensity is low; production, dispatching and management are simple. Moreover, stoping of the main ore in a stope and recovery of ore in the bottom structure of the stope are realized synchronously in a crossed manner, and the stoping operation is safe, so that the resource recovery rate is high.
Description
Technical field
The invention belongs to underground mine exploitation field, a kind of macrostructure sublevel drill and benching ore removal afterwards filling mining method of particularly ore deposit rock firm inclined thick gulf exploitation.
Background technology
For the inclined thick gulf exploitation that ore deposit rock is firm ~ extremely firm, sublevel drill and benching ore removal afterwards filling mining method is a kind of than better suited mining methods.Ore body division in stage casing is segmentation by the method, stage base level is provided with bottom ore structure, rock drilling in sublevel drilling tunnel, explosion fall ore deposit, and broken ore concentrates on bottom ore level and carries out shovel dress or carrying, and stope falls after ore deposit, ore removal and carries out filling treatment to goaf.
The sublevel drill and benching ore removal afterwards filling mining method level interval that current China mine adopts is generally 50 ~ 60m, height of lift 10 ~ 12m, mineral building, ore pillar span 10 ~ 12m.Normal back production is carried out in two steps, a step rooming, and two step stooping pillarings, period does not carry out back production to polycrystalline substance.Polycrystalline substance ore does not reclaim usually, reclaim after the back production of stage casing or reclaim as " residual ore deposit " is unified at mine life end.
For large-scale super-huge underground mine, the sublevel drill and benching ore removal afterwards filling method of said structure parameter is adopted to produce, for meeting mine capacity, often need to arrange multiple stage casing simultaneously, multiple stope produces simultaneously, mine adopts that accurate cutting engineering quantity is large, the duration is tight, the workloads such as stope production scheduling, job-shop are complicated, and personnel equipment work team consumes large, and work efficiency is low.In addition, if do not reclaim polycrystalline substance, then quite a few ore resource is wasted loss; If the complete or length of service reclaims latter stage in stage casing back production, original part engineering needs maintenance cost high, and by adopt early stage and the special occurrence patterns of polycrystalline substance ore affects, later stage back production environment severe exacerbation, increases work arrangement newly, difficulty of construction is large.
Summary of the invention
The object of this invention is to provide a kind of macrostructure sublevel drill and benching ore removal afterwards filling mining method, the method production capacity of mining field is large, efficiency is high, can meet the requirement of large-scale super-huge mine capacity, can realize the safe and efficient recovery of polycrystalline substance while back production main body ore simultaneously.
The macrostructure sublevel drill and benching ore removal afterwards filling mining method of synchronous recovery polycrystalline substance of the present invention, level interval 100 ~ 120m, height of lift 20 ~ 25m, stope is long is orebody thickness, and wide 20 ~ 30m, stage ore removal level adopts plain base polycrystalline substance.Stope mining and polycrystalline substance reclaim synchronous the intersection to carry out.
Described stope is divided into odd number stope and even number stope along orebody trend.
Two adjacent odd number stopes and even number stope share a polycrystalline substance, and the back production of described polycrystalline substance is divided into two 1/2 polycrystalline substances in left and right to carry out back production.
From back production Time and place, back production divides four steps to carry out: first step back production odd number stope, goaf not filling; 1/2 polycrystalline substance that second step back production odd number stope is corresponding, filling odd number stope and polycrystalline substance goaf thereof after back production; 3rd step back production even number stope, goaf not filling; Other 1/2 polycrystalline substance that 4th step back production even number stope is corresponding, filling even number stope and polycrystalline substance goaf thereof after back production.
Described level interval 100 ~ 120m, height of lift 20 ~ 25m, stope is long is orebody thickness, and wide 20 ~ 30m, its value is determined according to combined factors such as ore body occurrence patterns, ore-rock stability, theoretical analysis and calculation result and plant equipment used.
Described plain base polycrystalline substance comprise an ore removal Chuan Mai, two by tunnel, ore deposit, several ore removal routes, spatial shape is a large symmetrical triangle output.Wherein, ore removal is worn arteries and veins and is arranged in nugget middle position and is shared by both sides stope, most preferably tunnel specification 4.2m × 4.1m; Article two, lay respectively at the side boundary position wearing arteries and veins away from central ore removal by ore deposit moat ditch, most preferably bottom of trench width 4.2m, high 25m, slope angle 55 °.
During 1/2 polycrystalline substance back production corresponding to odd number stope, personnel equipment carries out rock drilling, powder charge in the ore removal route of stope bottom structure, with odd number stope dead zone for the scope of freedom and compensation space carry out explosion, after ore caving, scraper is through the ore removal route ore removal of odd number stope and neighbouring even-numbered stope; During 1/2 polycrystalline substance back production corresponding to even number stope, personnel equipment carries out rock drilling, powder charge in the ore removal route of stope bottom structure, with even number stope dead zone for the scope of freedom and compensation space carry out explosion, after ore caving, scraper is through the ore removal route ore removal of even number stope.
While the first step carries out odd number stope mining, ore removal route of simultaneously constructing in 1/2 polycrystalline substance that even number stope is corresponding, construction speed should ensure to complete before the 1/2 polycrystalline substance back production that odd number stope is corresponding formally starts.
During polycrystalline substance back production, long and medium hole drilling chassis Drilling in ore removal route oppositely arranges the fanhole(s) at inclination angle, face, most preferably big gun hole bottom hole pitch polycrystalline substance chamfer distance controls as 1.5m, row 90 ~ 82 °, inclination angle, face not etc., along with stope propelling hole packed plane inclination angle backward diminishes gradually.The ore body rock drilling of polycrystalline substance bottom adopts YG-40 type hammer drill cutter low-angle hole and lateral aperture.
During polycrystalline substance back production, require that polycrystalline substance stope is advanced into when ore removal wears arteries and veins 4 ~ 5m and stop back production.Then build filling counterfort by laying bricks or stones at ore removal route opposed flattened, cross-sectional area smaller part and carry out filling.
Even number stope corresponding polycrystalline substance back production yield ores adopts remote-controlled scraper ore removal; Odd number stope corresponding polycrystalline substance back production ore removal can adopt conventional scraper, can adopt remote-controlled scraper when ore cannot shovel and fill clean.
Compared to existing mining methods and technology, the present invention has following advantage: adopt accurate cutting engineering quantity and greatly reduce, single production capacity of mining field is large, and efficiency is high, and labor strength is low, and production scheduling is simple with management.Simultaneously, while the back production of stope main body ore, carry out synchronous intersection to the ore of stope bottom structure reclaim, stoping operation safety, resource recovery is high, existing engineering can be made full use of, solve the later stage series of problems such as engineering maintenance costly when reclaiming separately polycrystalline substance, back production environment worsens, newly-increased work arrangement difficulty is large.
Accompanying drawing explanation
Fig. 1 is front view of the present invention.
Fig. 2 is the left view of stope mining of the present invention.
Fig. 3 is top view of the present invention.
Fig. 4 is the left view that the present invention reclaims polycrystalline substance.
In figure: 1-level haulage tunnel; 2-segmentation tunnel; 3-drilling drift; 4-broken ore; 5-ore removal route; 6-ore removal wears arteries and veins; 7-medium-length hole; 8-obturation; 9-filling counterfort.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
See Fig. 1, Fig. 2, Fig. 3 and Fig. 4, ore body across pitch is divided into odd number stope and even number stope, and according to miding level height 100m, stope span is 20m, and the stope structure parameter formation level haulage tunnel of height of lift 25m, segmentation tunnel, drilling drift, ore removal are worn arteries and veins, ore removal route etc. and adopted accurate cutting engineering.Adopt after cut journey is formed and can start back production, first step back production odd number stope during back production, goaf not filling; 1/2 polycrystalline substance that second step back production odd number stope is corresponding, filling odd number stope and polycrystalline substance goaf thereof after back production; 3rd step back production even number stope, goaf not filling; Other 1/2 polycrystalline substance that 4th step back production even number stope is corresponding, filling even number stope and polycrystalline substance goaf thereof after back production.Odd number, even number stope mining adopt the mode of sublevel drill and benching ore removal, personnel equipment carries out the operations such as rock drilling, powder charge, explosion in sublevel drilling tunnel, and broken ore wears arteries and veins, ore removal route scraper mechanical shovel dress through ore removal in corresponding 1/2 polycrystalline substance of ore removal level.During 1/2 polycrystalline substance back production corresponding to odd number stope, personnel equipment carries out rock drilling, powder charge in the ore removal route of stope bottom structure, with odd number stope dead zone for the scope of freedom and compensation space carry out explosion, after ore caving, scraper is through the ore removal route ore removal of odd number stope and neighbouring even-numbered stope; During 1/2 polycrystalline substance back production corresponding to even number stope, personnel equipment carries out rock drilling, powder charge in the ore removal route of stope bottom structure, with even number stope dead zone for the scope of freedom and compensation space carry out explosion, after ore caving, scraper is through the ore removal route ore removal of even number stope.
Claims (7)
1. a macrostructure sublevel drill and benching ore removal afterwards filling mining method, it is characterized in that: stope is divided into odd number stope and even number stope along orebody trend, stage ore removal level adopts plain base polycrystalline substance, two adjacent odd number stopes and even number stope share a polycrystalline substance, the back production of polycrystalline substance is divided into two 1/2 polycrystalline substances in left and right to carry out back production, stope mining and polycrystalline substance reclaim synchronous the intersection to carry out: first step back production odd number stope, back production mode is sublevel drill and benching ore removal, and goaf wouldn't filling; 1/2 polycrystalline substance that second step back production odd number stope is corresponding, carries out filling by the corresponding goaf of 1/2 polycrystalline substance of mineral building and correspondence thereof after back production terminates; 3rd step back production even number stope, back production adopts sublevel drill and benching ore removal mode to carry out equally, and goaf wouldn't filling; 1/2 polycrystalline substance that 4th step stooping pillaring is corresponding, carries out filling by ore pillar and the corresponding dead zone of corresponding 1/2 polycrystalline substance thereof after back production terminates.
2. macrostructure sublevel drill and benching ore removal afterwards filling mining method according to claim 1, is characterized in that: stage high 100 ~ 120m, height of lift 20 ~ 25m, and stope is long is orebody thickness, wide 20 ~ 30m.
3. macrostructure sublevel drill and benching ore removal afterwards filling mining method according to claim 1, it is characterized in that: described plain base polycrystalline substance comprises an ore removal Chuan Mai, two by tunnel, ore deposit and several ore removal routes, spatial shape is a large symmetrical triangle output, ore removal is worn arteries and veins and is arranged in nugget middle position and is shared by both sides stope, and two lay respectively at the side boundary position wearing arteries and veins away from central ore removal by ore deposit moat ditch.
4. the macrostructure sublevel drill and benching ore removal afterwards filling mining method according to claim 1 or 3, it is characterized in that: during 1/2 polycrystalline substance back production corresponding to odd number stope, personnel equipment carries out rock drilling, powder charge in the ore removal route of stope bottom structure, with odd number stope dead zone for the scope of freedom and compensation space carry out explosion, through the ore removal route ore removal of odd number stope and neighbouring even-numbered stope after ore caving; During 1/2 polycrystalline substance back production corresponding to even number stope, personnel equipment carries out rock drilling, powder charge in the ore removal route of stope bottom structure, with even number stope dead zone for the scope of freedom and compensation space carry out explosion, through the ore removal route ore removal of even number stope after ore caving.
5. macrostructure sublevel drill and benching ore removal afterwards filling mining method according to claim 1, is characterized in that: while the first step carries out odd number stope mining, ore removal route of simultaneously constructing in 1/2 polycrystalline substance that even number stope is corresponding.
6. the macrostructure sublevel drill and benching ore removal afterwards filling mining method according to claim 1 or 3, it is characterized in that: during polycrystalline substance back production, in ore removal route, Drilling oppositely arranges the fanhole(s) at inclination angle, face, along with stope propelling hole packed plane inclination angle backward diminishes gradually.
7. the macrostructure sublevel drill and benching ore removal afterwards filling mining method according to claim 1 or 3, is characterized in that: during polycrystalline substance back production, requires that polycrystalline substance stope is advanced into when ore removal wears arteries and veins 4 ~ 5m and stops back production.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525922A (en) * | 2015-12-07 | 2016-04-27 | 五矿邯邢矿业有限公司西石门铁矿 | Double-trench flat-bottom mining method for ores difficult to mine |
| CN105781611A (en) * | 2016-03-03 | 2016-07-20 | 河北钢铁集团矿业有限公司 | Continuous-span stope room structure design method based on hyperstatic three-hinged arches |
| CN105822306A (en) * | 2016-03-22 | 2016-08-03 | 河北钢铁集团矿业有限公司 | Chamber structure design method of steeply inclined large and thick ore body multi-span structural system |
| CN105927227A (en) * | 2016-04-21 | 2016-09-07 | 西北矿冶研究院 | Determination method for trench angle of bottom structure |
| CN105952450A (en) * | 2016-06-20 | 2016-09-21 | 中钢集团马鞍山矿山研究院有限公司 | Novel method for collaboratively exploiting underground double stopes of underground mine |
| CN109184694A (en) * | 2018-09-05 | 2019-01-11 | 巴彦淖尔西部铜业有限公司 | A kind of pre- anchor sublevel drilling stage open stope afterwards filling mining method of upper disk |
| CN110644997A (en) * | 2019-10-10 | 2020-01-03 | 安徽金安矿业有限公司 | Sublevel rock drilling and sublevel mining subsequent filling mining method |
| CN110685737A (en) * | 2019-09-02 | 2020-01-14 | 河北省矾山磷矿有限公司 | Flat-bottom structure sublevel rock drilling stage ore removal subsequent filling mining method |
| CN109490499B (en) * | 2018-11-15 | 2021-02-05 | 长沙矿山研究院有限责任公司 | Dynamic monitoring and predicting method for water quality of filling body |
| CN113338937A (en) * | 2021-06-18 | 2021-09-03 | 内蒙古科技大学 | Stoping method for reducing loss of mining footwall ore by inclined ore body caving method |
| WO2022052716A1 (en) * | 2020-09-11 | 2022-03-17 | 中钢集团马鞍山矿山研究总院股份有限公司 | Novel ore mining method suitable for multi-stope synchronous mining of large and thick ore body |
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| CN105525922A (en) * | 2015-12-07 | 2016-04-27 | 五矿邯邢矿业有限公司西石门铁矿 | Double-trench flat-bottom mining method for ores difficult to mine |
| CN105781611B (en) * | 2016-03-03 | 2017-08-29 | 河北钢铁集团矿业有限公司 | Across the mineral building construction design method of company based on indeterminate three-hinged arch |
| CN105781611A (en) * | 2016-03-03 | 2016-07-20 | 河北钢铁集团矿业有限公司 | Continuous-span stope room structure design method based on hyperstatic three-hinged arches |
| CN105822306A (en) * | 2016-03-22 | 2016-08-03 | 河北钢铁集团矿业有限公司 | Chamber structure design method of steeply inclined large and thick ore body multi-span structural system |
| CN105927227A (en) * | 2016-04-21 | 2016-09-07 | 西北矿冶研究院 | Determination method for trench angle of bottom structure |
| CN105952450B (en) * | 2016-06-20 | 2018-04-10 | 中钢集团马鞍山矿山研究院有限公司 | A kind of new method of the double stope collaboration exploitations in underground mine underground |
| CN105952450A (en) * | 2016-06-20 | 2016-09-21 | 中钢集团马鞍山矿山研究院有限公司 | Novel method for collaboratively exploiting underground double stopes of underground mine |
| CN109184694A (en) * | 2018-09-05 | 2019-01-11 | 巴彦淖尔西部铜业有限公司 | A kind of pre- anchor sublevel drilling stage open stope afterwards filling mining method of upper disk |
| CN109490499B (en) * | 2018-11-15 | 2021-02-05 | 长沙矿山研究院有限责任公司 | Dynamic monitoring and predicting method for water quality of filling body |
| CN110685737A (en) * | 2019-09-02 | 2020-01-14 | 河北省矾山磷矿有限公司 | Flat-bottom structure sublevel rock drilling stage ore removal subsequent filling mining method |
| CN110644997A (en) * | 2019-10-10 | 2020-01-03 | 安徽金安矿业有限公司 | Sublevel rock drilling and sublevel mining subsequent filling mining method |
| CN110644997B (en) * | 2019-10-10 | 2021-06-11 | 安徽金安矿业有限公司 | Sublevel rock drilling and sublevel mining subsequent filling mining method |
| WO2022052716A1 (en) * | 2020-09-11 | 2022-03-17 | 中钢集团马鞍山矿山研究总院股份有限公司 | Novel ore mining method suitable for multi-stope synchronous mining of large and thick ore body |
| CN113338937A (en) * | 2021-06-18 | 2021-09-03 | 内蒙古科技大学 | Stoping method for reducing loss of mining footwall ore by inclined ore body caving method |
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